Table 2.
Concentrations of bioavailable metal ions sampled by diffusive gradient in thin film devices (DGTs) in the river sites studied in Italy, the UK and The Netherlands. (All data are taken from Garofalo et al. 2004. I, Italy; NL, The Netherlands.)
| country, river, site | Zn (μg l−1) | Ni (μg l−1) | Cu (μg l−1) | Pb (μg l−1) | Cd (μg l−1) | Mn (μg l−1) |
|---|---|---|---|---|---|---|
| I, Lambro, Merone | 0.65 | 0.61 | 0.33 | 0.06 | 0.001 | 2.50 |
| I, Lambro, Brugherio | 3.98 | 3.43 | 2.74 | 0.33 | 0.006 | 5.07 |
| UK, Blythe | 1.44 | 0.31 | 0.31 | 0.08 | 0.005 | 3.89 |
| UK, Cole | 8.42 | 1.08 | 0.77 | 0.27 | 0.016 | 4.16 |
| UK, Tame | 23.84 | 4.22 | 0.77 | 0.10 | 0.011 | 10.16 |
| NL, Amstel, Vrouwenakker | 2.93 | 0.00 | 0.24 | 0.01 | 0.003 | 12.00 |
| NL, Amstel, Amsterdam | 1.34 | 0.42 | 0.13 | 0.00 | 0.001 | 6.04 |
| NL, Volgermeerpolder | 1.73 | 0.21 | 0.17 | 0.00 | 0.002 | 9.77 |